Popular rapper Tupac Shakur was killed 18 years ago during a scuffle with 21-year-old gang member Orlando Anderson at the MGM Grand casino on Sept. 7, 1996.

Chris Carroll, a retired sergeant with the Las Vegas Metropolitan Police Department who was the last person who the rapper spoke to, disclosed his last words before dying.

"He looked at me, and he took a breath to get the words out, and he opened his mouth," Carroll said. "And then the words came out: 'F--k you.'"

Tupac and his bodyguards had left after watching a Mike Tyson boxing match that night, were followed by a white Cadillac at the Flamingo Road and Koval Lane. A man pulled out a gun from the Cadillac and began shooting at the rappers car window. Caroll was the first one to report at the crime scene.

"I grab the car door and I'm trying to open it, but I can't get it open," he says. "[Knight] keeps coming up on my back, so I'm pointing my gun at him. I'm pointing it at the car. I'm yelling, 'You guys lay down! And you, get the f--k away from me!' And every time I'd point the gun at him, he'd back off and even lift his hands up, like 'All right! All right!'

"So I'd go back to the car, and here he comes again. I'm like, 'F--ker, back off!' This guy is huge, and the whole time he's running around at the scene, he's gushing blood from his head. Gushing blood! I mean the guy had clearly been hit in the head, but he had all his faculties. I couldn't believe he was running around and doing what he was doing, yelling back and forth.”

Once Carroll was able to open the car door, he was greeted by Tupac's limp body.

"So I grabbed him with my left arm, and he falls into me, and I've still got my gun in the other hand," he continues. "He's covered with blood, and I immediately notice that the guy's got a ton of gold on—a necklace and other jewelry—and all of the gold is covered in blood. That has always left an image in my mind. . . After I pulled him out, Suge starts yelling at him, 'Pac! Pac!' And he just keeps yelling it. And the guy I'm holding is trying to yell back at him. He's sitting up and he's struggling to get the words out, but he can't really do it. And as Suge is yelling 'Pac!,' I look down and I realize that this is Tupac Shakur."

Carroll continued, "And then I saw in his face, in his movements, all of a sudden in the snap of a finger, he changed," he says. "And he went from struggling to speak, being non- cooperative, to an 'I'm at peace' type of thing. Just like that...He went from fighting to 'I can't do it.' And when he made that transition, he looked at me, and he's looking right in my eyes.

"And that's when I looked at him and said one more time, 'Who shot you?'...He looked at me and he took a breath to get the words out, and he opened his mouth, and I thought I was actually going to get some cooperation. And then the words came out: 'F**k you.' After that, he started gurgling and slipping out of consciousness."

Tupac dies six days after being unconscious at the University Medical Centre of Southern Nevada.